运行任何bundle命令时，我看到Warning: the running version of Bundler is older than the version that created the lockfile. We suggest you upgrade to the latest version of Bundler by running 'gem install bundler'.然后我运行命令gem install bundler，它需要权限，然后我使用sudo和
Successfully installed bundler-1.16.1
Parsing documentation for bundler-1.16.1
Done installing documentation for bundler after 3 seconds
1 gem installed
但在使用bundle version时，我会看到Bundler version 1.11.2。如何解决？